[Catalyst] Migrate Adaptive brightness in the DisplayScreen

Migrate the AutoBrightnessPreferenceController to be a Catalyst type preference.

Test: atest AutoBrightnessScreenTest
Bug: 374712065
Flag: com.android.settings.flags.catalyst_screen_brightness_mode
Change-Id: I80d17a4f7fae237825ab84d1f428614affcb9065

aconfig/catalyst/display.aconfig

@@ -22,3 +22,9 @@ flag {
   bug: "323791114"
 }
 
+flag {
+  name: "catalyst_screen_brightness_mode"
+  namespace: "android_settings"
+  description: "Flag for Adaptive brightness"
+  bug: "323791114"
+}

res/xml/display_settings.xml

@@ -34,7 +34,7 @@
             settings:userRestriction="no_config_brightness"/>
 
         <com.android.settingslib.PrimarySwitchPreference
-            android:key="@string/preference_key_auto_brightness"
+            android:key="screen_brightness_mode"
             android:title="@string/auto_brightness_title"
             android:fragment="com.android.settings.display.AutoBrightnessSettings"
             settings:useAdminDisabledSummary="true"

src/com/android/settings/display/AutoBrightnessPreferenceController.java

@@ -32,6 +32,7 @@ import com.android.settingslib.PrimarySwitchPreference;
 /**
  * The top-level preference controller that updates the adaptive brightness.
  */
+// LINT.IfChange
 public class AutoBrightnessPreferenceController extends TogglePreferenceController {
 
     private final String SYSTEM_KEY = SCREEN_BRIGHTNESS_MODE;
@@ -90,3 +91,4 @@ public class AutoBrightnessPreferenceController extends TogglePreferenceControll
         return R.string.menu_key_display;
     }
 }
+// LINT.ThenChange(AutoBrightnessScreen.kt)

src/com/android/settings/display/AutoBrightnessScreen.kt

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.display
+
+import android.content.Context
+import android.os.Process
+import android.os.UserHandle
+import android.os.UserManager
+import android.provider.Settings
+import android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC
+import android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL
+import androidx.preference.Preference
+import com.android.settings.R
+import com.android.settings.flags.Flags
+import com.android.settingslib.PrimarySwitchPreference
+import com.android.settingslib.RestrictedLockUtilsInternal
+import com.android.settingslib.datastore.SettingsSystemStore
+import com.android.settingslib.metadata.BooleanValue
+import com.android.settingslib.metadata.PersistentPreference
+import com.android.settingslib.metadata.PreferenceAvailabilityProvider
+import com.android.settingslib.metadata.PreferenceMetadata
+import com.android.settingslib.metadata.PreferenceRestrictionProvider
+import com.android.settingslib.metadata.ProvidePreferenceScreen
+import com.android.settingslib.metadata.preferenceHierarchy
+import com.android.settingslib.preference.PreferenceScreenBinding
+import com.android.settingslib.preference.PreferenceScreenCreator
+
+@ProvidePreferenceScreen
+class AutoBrightnessScreen :
+    PreferenceScreenCreator,
+    PreferenceScreenBinding,
+    PreferenceAvailabilityProvider,
+    PreferenceRestrictionProvider,
+    PersistentPreference<Boolean>,
+    BooleanValue {
+    override val key: String
+        get() = KEY
+
+    override val title: Int
+        get() = R.string.auto_brightness_title
+
+    override fun isFlagEnabled(context: Context) = Flags.catalystScreenBrightnessMode()
+
+    override fun fragmentClass() = AutoBrightnessSettings::class.java
+
+    override fun hasCompleteHierarchy() = false
+
+    override fun getPreferenceHierarchy(context: Context) = preferenceHierarchy(this) {}
+
+    override fun storage(context: Context) = SettingsSystemStore.get(context)
+
+    override fun isAvailable(context: Context) =
+        context.resources.getBoolean(
+            com.android.internal.R.bool.config_automatic_brightness_available
+        )
+
+    override fun isEnabled(context: Context) =
+        !UserManager.get(context)
+            .hasBaseUserRestriction(UserManager.DISALLOW_CONFIG_BRIGHTNESS, Process.myUserHandle())
+
+    override fun isRestricted(context: Context) =
+        RestrictedLockUtilsInternal.checkIfRestrictionEnforced(
+            context,
+            UserManager.DISALLOW_CONFIG_BRIGHTNESS,
+            UserHandle.myUserId(),
+        ) != null
+
+    override fun createWidget(context: Context) = PrimarySwitchPreference(context)
+
+    override fun bind(preference: Preference, metadata: PreferenceMetadata) {
+        super.bind(preference, metadata)
+        (preference as PrimarySwitchPreference).apply {
+            useAdminDisabledSummary(true)
+            isSwitchEnabled = isEnabled
+            isChecked =
+                storage(preference.context).getBoolean(KEY)
+                    ?: getDefault(SCREEN_BRIGHTNESS_MODE_MANUAL)
+        }
+    }
+
+    private fun getDefault(brightnessDefault: Int): Boolean =
+        brightnessDefault == SCREEN_BRIGHTNESS_MODE_AUTOMATIC
+
+    companion object {
+        const val KEY = Settings.System.SCREEN_BRIGHTNESS_MODE
+    }
+}

src/com/android/settings/display/DisplayScreen.kt

@@ -52,6 +52,7 @@ class DisplayScreen :
 
     override fun getPreferenceHierarchy(context: Context) = preferenceHierarchy(this) {
         +BrightnessLevelRestrictedPreference()
+        +AutoBrightnessScreen.KEY
         +DarkModeScreen.KEY
         +PeakRefreshRateSwitchPreference()
     }

tests/robotests/src/com/android/settings/display/AutoBrightnessPreferenceControllerTest.java

@@ -43,6 +43,7 @@ import org.robolectric.annotation.Config;
 /**
  * Tests for {@link AutoBrightnessPreferenceController}.
  */
+// LINT.IfChange
 @RunWith(RobolectricTestRunner.class)
 @Config(shadows = {SettingsShadowResources.class})
 public class AutoBrightnessPreferenceControllerTest {
@@ -139,3 +140,4 @@ public class AutoBrightnessPreferenceControllerTest {
         assertThat(mController.getAvailabilityStatus()).isEqualTo(UNSUPPORTED_ON_DEVICE);
     }
 }
+// LINT.ThenChange(AutoBrightnessScreenTest.kt)

tests/robotests/src/com/android/settings/display/AutoBrightnessScreenTest.kt

@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.display
+
+import android.content.Context
+import android.provider.Settings
+import android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC
+import android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL
+import android.view.LayoutInflater
+import androidx.preference.PreferenceViewHolder
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.settings.testutils.shadow.SettingsShadowResources
+import com.android.settingslib.PrimarySwitchPreference
+import com.android.settingslib.widget.SettingsThemeHelper.isExpressiveTheme
+import com.android.settingslib.widget.theme.R
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.annotation.Config
+
+// LINT.IfChange
+@RunWith(AndroidJUnit4::class)
+@Config(shadows = [SettingsShadowResources::class])
+class AutoBrightnessScreenTest {
+
+    private val context: Context = ApplicationProvider.getApplicationContext()
+
+    private val preferenceScreenCreator = AutoBrightnessScreen()
+
+    @Test
+    fun switchClick_defaultScreenBrightnessModeTurnOffAuto_returnTrue() {
+        setScreenBrightnessMode(SCREEN_BRIGHTNESS_MODE_MANUAL)
+        val preference = getPrimarySwitchPreference()
+
+        assertThat(preference.switch.isChecked).isFalse()
+
+        preference.switch.performClick()
+
+        assertThat(preference.isChecked).isTrue()
+    }
+
+    @Test
+    fun switchClick_defaultScreenBrightnessModeTurnOnAuto_returnFalse() {
+        setScreenBrightnessMode(SCREEN_BRIGHTNESS_MODE_AUTOMATIC)
+        val preference = getPrimarySwitchPreference()
+
+        assertThat(preference.switch.isChecked).isTrue()
+
+        preference.switch.performClick()
+
+        assertThat(preference.isChecked).isFalse()
+    }
+
+    @Test
+    fun setChecked_updatesCorrectly() {
+        val preference = getPrimarySwitchPreference()
+
+        preference.isChecked = true
+
+        assertThat(preference.switch.isChecked).isTrue()
+
+        preference.isChecked = false
+
+        assertThat(preference.switch.isChecked).isFalse()
+    }
+
+    @Test
+    fun isChecked_defaultScreenBrightnessModeTurnOffAuto_returnFalse() {
+        setScreenBrightnessMode(SCREEN_BRIGHTNESS_MODE_MANUAL)
+
+        val preference = getPrimarySwitchPreference()
+
+        assertThat(preference.isChecked).isFalse()
+    }
+
+    @Test
+    fun isChecked_defaultScreenBrightnessModeTurnOffAuto_returnTrue() {
+        setScreenBrightnessMode(SCREEN_BRIGHTNESS_MODE_AUTOMATIC)
+
+        val preference = getPrimarySwitchPreference()
+
+        assertThat(preference.isChecked).isTrue()
+    }
+
+    @Test
+    fun isAvailable_configTrueSet_shouldReturnTrue() {
+        SettingsShadowResources.overrideResource(
+            com.android.internal.R.bool.config_automatic_brightness_available,
+            true,
+        )
+
+        assertThat(preferenceScreenCreator.isAvailable(context)).isTrue()
+    }
+
+    @Test
+    fun isAvailable_configFalseSet_shouldReturnFalse() {
+        SettingsShadowResources.overrideResource(
+            com.android.internal.R.bool.config_automatic_brightness_available,
+            false,
+        )
+
+        assertThat(preferenceScreenCreator.isAvailable(context)).isFalse()
+    }
+
+    private fun getPrimarySwitchPreference(): PrimarySwitchPreference =
+        preferenceScreenCreator.run {
+            val preference = createWidget(context)
+            bind(preference, this)
+            val holder =
+                PreferenceViewHolder.createInstanceForTests(
+                        LayoutInflater.from(context).inflate(getResId(), /* root= */ null)
+                    )
+                    .apply { findViewById(androidx.preference.R.id.switchWidget) }
+            preference.apply { onBindViewHolder(holder) }
+        }
+
+    private fun setScreenBrightnessMode(value: Int) =
+        Settings.System.putInt(context.contentResolver, AutoBrightnessScreen.KEY, value)
+
+    private fun getResId() =
+        when {
+            isExpressiveTheme(context) -> R.layout.settingslib_expressive_preference_switch
+            else -> androidx.preference.R.layout.preference_widget_switch_compat
+        }
+}
+// LINT.ThenChange(AutoBrightnessPreferenceControllerTest.java)